Lubricating device



- Nov. 23, 1937. l H. R. TEAR I 2,100,091

' LUBRICATING DEVICE Filed Feb. 3, 1936 2 Sheets-Sheet 1 Tine;

ATTORNEY Nov. 23, 1937. H R. TEAR 2,100,091 I LUBRICATING DEVICE Filed Feb. :5, 1936 2 Sheets-Sheet 2 ATTORNEY 1 utilizing quick-attachable,

F F -'21s a view similar to l 5 in anotherposition;

. iff l itented' Nov gtg I LunarcA -rmc DEVICE 5 Harry R. Tear, Evanlton, 111., assignor to The Lubrication Corporation, Chicago, Ill.,.a corn tation of Delaware .App m m s, iossgseml No. 62,057" a iii-claims.

This; invention relates to lubricating'devices and 'more particularly to lubricant dispensers quick-detachable factory-filled cartridges; l

25 In my prior Patent No. 2,025,230 there is disclosed and claimed a 'lubricatingdevice of this type including a skeleton frame which carries a lubricant pump and a feeding mechanism which may'bepivoted out of alinement to permit'inser-' 10.tion or removal of a cartridge, or into 'alineme'nt for operation. Such a skeleton frame does f not obstructthe visibility of the cartridgeand enables an operator to ascertain readily what type of lubricant is in the' device, and a customer to 31s ascertain that He isobtainingthe kind oflubricanthe requested, in addition to having an advertising value for the" manufacturer. It has been found, however, that cartridges have a tendency to tilt or cock where a sk eletonframe is employed, thereby interfering with proper operation.

l .Accordingly one of the objects'of the present invention is toprovide a lubricant dispenser inf eluding a skeleton frame in which the lubricant a. cartridge is l frame.

held in :proper alinement in the Another object is to provide a lubricant dispenser formed of pivotally interconnected'dparts [in which. the pa'rtsareheld in alinement during wuse' Inone' desirablel arrangement there-is provid fed a lubricant pump to which ajsupply cartridge is adapted to'be rigidly secured; A stirrup is pivoted to the pumpand constitutes a skeleton frame adapted to be swung into alinement with I the "cartridge, in which position a feed screw car-* ried by the stirrup may engage a piston in th cartridge to force lubricant therefrom. l

A pair of stops, one orfboth of which is movable,:may be carried by the stirrup to engage the cartridgeand i hold the :parts. in alinement. In

oneform, onea'of-therstops isshown asrigid and. a i the other axially,slidablewhileln anotherform the stops constitute an axially slidable latch 5. which may .be operatedby movement of the feed screw. I

,Qther, objects, advantagesand novel features,

including desirable detailed. constructions, will be apparent from the following description when taken in connection with l the accompanying drawings, in which: v

Fig. -1 is a side view,.of:a lubricant dispenser embodying theinventiont a I Fig; 1 with theparts (ci. tai -41.3)

Fig. 3 isan enlarged view similar to Fig. l with parts in section: l

Fig.4 is a partial section on the line 4-4 of Fig. 3; and

Fig.5 is a partial section similar to Fig.3 showing an alternative construction.

The dispenser illustrated in Figs. 1 to 4 is con-' 'stituted by a high pressure lubricant pump I of the push type which is floatingly mounted on a circular head plate 2 in the manner'more particularly. disclosed and claimed in my copending application Serial N0. '743,123, filed September 1'7, 1934. The pump is formed with an axial inlet. defined by. a stud 3 having a substantially spherical contact surface which is adapted for sealing indicia toidentify the character of lubricant in the cartridge as well as the manufacturer thereof.

A stirrup or skeleton frame constituted by relatively narrow straps I and a'cap member 8 is pivoted to the head plate 2*as at 9 and carriesfeedingmechanism for forcing the lubricant from the cartridge. As best seen in Fig. 3 a tubular member I 0 is slidably mounted inthe cap 8 and I is urged forwardly therein by a spring II. The member In has a radial bore in which a screw engaging member 12 is slidable and a cam ,collar l3 isrotatably mounted on the member. ID "to coni4 extendsthroughthe member in and is provided with a suitable operatingihandle won its; outer end. When themember. I2 is out .of en-- gagement with the feed screw, the latter can slide vtrol the screw engaging member I 2. A feed screw freely through the member l0, but when the cam I3 is turned to force the member I! into engage i ment with the .feed screw it can only be screwed.

through thejmember ill] It will be noted that pressure on the feed screw I4 above theinitial compressional. the spring II will compress the spring I i and slide member i0 through the cap 8. In this way the displacement of member ID serves as a measure of the force applied to the piston 6 by the feed screw and. the spring Ii serves to maintain the lubricant in the cartridge under." pressure during the dispensing of a considerable quantity thereof. ,1 w 1 a ll engagement with the wall of a lubricant cartridge proper alinement of the parts at all times, there is provided, according to the present invention, a

stop l5 rigidly secured to the cap 8 and which may engage the cartridge 4 near the end thereof to limit swinging movement betweenthe" car-' tridge and the cap. Diametrically opposite to the stop I5, the cap 8 carries an axially slidable stop or latch l6 which slides'on suitable ridges or guides I! in the cap 8 and whose position is controlled by a rod l8 extending through the cap 8 and having on the outer end thereof a suitable hand button l9.

In operation, the feed screw I4 may be with drawn and the button l9 may be pulled out to withdraw the latch l6 into the cap 8. If the frame I is pivoted about the head plate '2 substantially in the position shownin Fig. 2 a cartridge 4 may be secured to the connector, plate 5 with its outlet in communication with the pump inlet. The frame may then be swung into alinement with the cartridge so that the stop l5 engages the cartridge end, the feed screw "and latch I6 being withdrawn to clear the cartridge end. The cartridge and frame may be locked in position by pressing the button H! to move the latch l6 into the position shown in Figs. 1 and 3.

after which the feed screw and pump may be operated to dispense lubricant to any desired point of use. To remove the cartridge it is-necessary only to withdraw the feed screw and latch the latch and which are preferably cast into the,

cap 8 although they might be secured to the head in any other suitable manner. Springs 24 are provided surrounding the rods 23 to urge the latch to its outer position in which it will engage the cartridge. 7 i

The feed screw J4 carries a cartridge piston engaging head 25 having an annular flange 25' which is larger than the'feed screw and the opening in the latch member so that when the feed screw is withdrawn, the flange 25' will engage the latch and withdraw it into the-cap 8' against the springs 24. The deviceof Fig. 5 is intended to be pivotally connected to a head plate such as 2 of Figs. 1 to 4 and is used inthe same manner as the device of Figs. lto 4, the primary difference being that withdrawal of the feed screw also withdraws the latch. I

While two embodiments of the invention have been shown and described it will be apparent that many changes might be made therein and it is not my intention to be limited to the embodi- Inents shown nor otherwise than by the terms of the appended claims.

I claim:

1. In a lubricating device, a lubricant pump, an

an interchangeable lubricant supply cart-ridge having a piston therein, means for detachably mounting said cartridge on said pump and for establishing lubricant communication between the pump and cartridge, cartridge piston operating mechanism'including a skeleton frame extending about said cartridge and pivotally secured at its forward end to said pump, and means carried by said frame for engaging the rear end of the cartridge to hold the frame in alinement therewith.-

3. A lubricating device comprising a lubricant pump having an inlet, means for detachably securing a lubricant supply cartridge to the pump withits outlet in communication with the pump inlet, a skeleton frame pivotally mounted on said pump and including members extending parallel with the axis of the cartridge when the cartridge is mounted on the pump, means carried by the frame for placing lubricant in the cartridge under pressure to force it into the pump, and releasable means carried by the frame and engageable with the cartridge to. hold the frame and the cartridge in alinement. a

4. A lubricating device comprising an elongated substantially cylindrical pump, means for rigidly securing a cylindrical lubricant cartridge coaxially to said pump with its outlet in communication with the pump inlet, a stirrup pivoted to said pump and adapted to swing into alinement with the pump and cartridge, meanscarried by said stirrup for holding the stirrup and cartridge in alinement, and feeding mechanism carried by said stirrup at the end thereof remote from the pumpfor forcing lubricant from the cartridgeinto the pump. l

5. In a lubricating device having a pump to which a lubricant cartridge is adapted to be secured, a stirrup pivoted to said pump, and feeding mechanism carried by thestlrrup, a stop member carried by said stirrup and engageable. with said cartridge to limit movement of the stirrup relative to the cartridge in one direction,.and releasable latch carried by said stirrup and engageable with the cartridge to limit movement of the stirrup relative. to the cartridge in the other direction. I f

6. In a lubricating device having a pump to which a lubricant cartridge is adapted to be secured, a stirrup pivoted to said pump, and feeding mechanism carried by the stirrupQastop member carried by said stirrup and engageable with said cartridge to limit movement of the stirrup relative to the cartridge in one direction. and a latch slidable axially of the cartridge and engageable therewith to limit movement of the'stirrup relative to the cartridge in the other direction.

7. A lubricating device comprising a lubricant pump having an inlet, means for detachably'securing a lubricant cartridge to said pump with its outlet in communication with said inlet, means pivotally secured to'said pump and movable into alinement with said cartridge, feeding niecha nism carried by said last named'means and movable into engagement with the cartridge to force lubricant therefrom, andreleasable means carried by said pivotal means and connected to said feedingmechanism tobe operated thereby for holding said pivotal means in alinement with the cartridge.

8. A lubricating device comprising a lubricantpump having an inlet, means for detachably securing a lubricant cartridgeto said pump with its outlet in communication with said inlet, means pivotally secured to said pump and movable into alinement with said cartridge, feeding mechanism carried by said last named means and movable into engagement with the cartridge to force lubricant therefrom, said feeding mechanism including an axially movable feed screw,

and releasable means connected to the feed screw to be operated by axial movement thereof for holding said pivotal means in alinement with the cartridge. r

9. A lubricating device comprising a pump, means for detachably securing a lubricant cartridge to the pump, a stirrup pivoted to the pump and movable into alinement with the cartridge,

, an axially movable feed screw carried by the stirrup for forcing lubricant from the cartridge, and

axially movable latch means carried by the stirrup g and engageable with the cartridge to hold the stirrup and cartridge in alinement.

10. A lubricating device comprising a pump, means for detachably securing a lubricant cartridge to the pump, a stirrup pivoted to the pump and movable into alinement with the cartridge. an axially movable feed screw carried by the stirrup for forcing lubricant from the cartridge,

and axially movable latch means carried by the stirrup and engageable with the cartridge to hold the stirrup and-cartridge in alinement, said latch means being connected .to the feed screw to be operated by axial movements thereof.

11. A lubricating device comprising, a head carrying lubricant discharge means having an inlet opening, means to secure a lubricant cartridge to said discharge means with its outlet in communication with said inlet, a skeleton frame pivotally mounted on said head and including members extending parallel with the axis of the cartridge, means carried by said frame for placing lubricant in the cartridge under pressure, and

releasable meanscarrled by the frame and engageable with the cartridge to hold the frame and the cartridge in alinement.

' HARRY R. TEAR. 

